A 17-year-old South Dakota boy faces charges after a missing teen girl was found dead inside his basement, according to a report.

Michael Gavin Campbell was charged as an adult Wednesday with second-degree murder in the death of 16-year-old Shayna Ritthaler of Wyoming,  the Sioux Falls Argus Leader reported.

Ritthaler, of Moorcroft, was reported missing Oct. 3.

Prosecutors allege that Campbell shot her after the pair got into an argument at his home near Sturgis.

Her body was discovered Monday when authorities executed a search warrant on the residence.

The Meade County Sheriff’s Office declined to release a cause of death pending an autopsy.

Campbell’s attorney said that he will request the case be moved to juvenile court. He said that his client will plead not guilty at his court appearance scheduled for Oct. 17.

With Post Wires